/* roulang page: index */
:root{
      --bg:#101012;
      --bg-soft:#171719;
      --bg-card:#1f1d20;
      --bg-elevated:#262226;
      --text:#f5f0ee;
      --muted:#b7aca8;
      --weak:#817873;
      --line:rgba(255,255,255,.095);
      --line-strong:rgba(255,255,255,.16);
      --primary:#a33f52;
      --primary-2:#7e2f3e;
      --primary-soft:rgba(163,63,82,.16);
      --amber:#c18a48;
      --green:#71b887;
      --danger:#c95d6d;
      --silver:#c9c0bb;
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:12px;
      --shadow:0 24px 80px rgba(0,0,0,.45);
      --shadow-soft:0 14px 40px rgba(0,0,0,.26);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--text);
      line-height:1.75;
      background:
        radial-gradient(circle at 18% 0%, rgba(163,63,82,.22), transparent 35%),
        radial-gradient(circle at 80% 12%, rgba(193,138,72,.10), transparent 28%),
        linear-gradient(180deg,#111113 0%,#0f0f11 58%,#151214 100%);
      min-height:100vh;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:rgba(163,63,82,.55);color:#fff}
    .container{width:min(var(--container),calc(100% - 40px));margin-inline:auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(17,17,19,.88);
      border-bottom:1px solid var(--line);
      backdrop-filter:blur(12px);
    }
    .nav-wrap{
      height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border:1px solid rgba(255,255,255,.18);
      border-radius:14px;
      background:
        linear-gradient(135deg,rgba(163,63,82,.34),rgba(255,255,255,.04)),
        #191719;
      display:grid;
      place-items:center;
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.04),0 0 28px rgba(163,63,82,.14);
      position:relative;
      flex:0 0 auto;
    }
    .brand-mark:before{
      content:"";
      width:10px;height:10px;border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 16px rgba(163,63,82,.85);
    }
    .brand-text{
      font-weight:800;
      letter-spacing:-.03em;
      font-size:18px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:8px;
      margin-left:auto;
    }
    .nav-links a{
      min-height:42px;
      display:inline-flex;
      align-items:center;
      padding:0 15px;
      border-radius:999px;
      color:var(--muted);
      font-size:14px;
      transition:.22s ease;
      position:relative;
    }
    .nav-links a:hover{
      color:#fff;
      background:rgba(255,255,255,.055);
    }
    .nav-links a.active{
      color:#fff;
      background:var(--primary-soft);
      box-shadow:inset 0 0 0 1px rgba(163,63,82,.28);
    }
    .nav-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:0 18px;
      border-radius:14px;
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      color:#fff!important;
      font-weight:700;
      box-shadow:0 12px 34px rgba(126,47,62,.28);
    }
    .nav-cta:hover{transform:translateY(-1px);filter:brightness(1.06)}
    .menu-btn{
      display:none;
      width:44px;height:44px;border-radius:14px;
      background:rgba(255,255,255,.06);
      border:1px solid var(--line);
      color:#fff;
      align-items:center;
      justify-content:center;
    }
    .menu-btn span,.menu-btn span:before,.menu-btn span:after{
      display:block;width:18px;height:2px;background:#fff;border-radius:10px;content:"";
      transition:.2s ease;
    }
    .menu-btn span:before{transform:translateY(-6px)}
    .menu-btn span:after{transform:translateY(4px)}
    .mobile-panel{
      display:none;
      border-top:1px solid var(--line);
      padding:12px 0 18px;
      background:#141315;
    }
    .mobile-panel a{
      display:flex;
      min-height:50px;
      align-items:center;
      padding:0 18px;
      border-radius:14px;
      color:var(--muted);
      margin:4px 0;
    }
    .mobile-panel a.active,.mobile-panel a:hover{
      color:#fff;
      background:var(--primary-soft);
    }
    .section{padding:88px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border:1px solid rgba(255,255,255,.12);
      border-radius:999px;
      background:rgba(255,255,255,.04);
      color:#d7cac6;
      font-size:13px;
      line-height:1;
    }
    .eyebrow:before{
      content:"";
      width:7px;height:7px;border-radius:50%;
      background:var(--green);
      box-shadow:0 0 14px rgba(113,184,135,.7);
    }
    .hero{
      padding:86px 0 72px;
      position:relative;
    }
    .hero:after{
      content:"";
      position:absolute;
      inset:auto 0 0 0;
      height:1px;
      background:linear-gradient(90deg,transparent,var(--line-strong),transparent);
    }
    .hero-stage{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:36px;
      align-items:stretch;
    }
    .hero-copy{
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      background:
        linear-gradient(135deg,rgba(255,255,255,.06),rgba(255,255,255,.015)),
        rgba(24,22,24,.78);
      box-shadow:var(--shadow);
      padding:44px;
      min-height:520px;
      display:flex;
      flex-direction:column;
      justify-content:center;
      position:relative;
      overflow:hidden;
    }
    .hero-copy:before{
      content:"";
      position:absolute;
      width:360px;height:360px;border-radius:50%;
      background:rgba(163,63,82,.14);
      filter:blur(30px);
      left:-180px;top:-160px;
    }
    .hero-copy>*{position:relative}
    h1{
      margin:18px 0 20px;
      font-size:clamp(34px,5vw,58px);
      line-height:1.08;
      letter-spacing:-.055em;
      font-weight:850;
    }
    .hero-desc{
      font-size:17px;
      color:#d0c5c1;
      max-width:680px;
      margin:0 0 28px;
    }
    .hero-actions,.cta-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:8px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:0 18px;
      border-radius:15px;
      font-weight:750;
      transition:.22s ease;
      border:1px solid transparent;
      user-select:none;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--primary),var(--primary-2));
      color:#fff;
      box-shadow:0 16px 42px rgba(126,47,62,.34);
    }
    .btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08)}
    .btn-secondary{
      background:rgba(255,255,255,.055);
      border-color:var(--line);
      color:#f2ece9;
    }
    .btn-secondary:hover{
      background:rgba(255,255,255,.09);
      border-color:rgba(255,255,255,.22);
      transform:translateY(-2px);
    }
    .btn-ghost{
      color:#d8ceca;
      border-color:rgba(255,255,255,.10);
      background:transparent;
    }
    .btn-ghost:hover{background:rgba(255,255,255,.06);color:#fff}
    .btn:focus-visible,.nav-links a:focus-visible,.menu-btn:focus-visible{
      outline:3px solid rgba(193,138,72,.42);
      outline-offset:3px;
    }
    .hero-points{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:34px;
    }
    .point{
      border:1px solid var(--line);
      border-radius:18px;
      padding:15px;
      background:rgba(255,255,255,.035);
    }
    .point b{display:block;font-size:18px}
    .point span{display:block;color:var(--weak);font-size:13px;margin-top:2px}
    .vertical-visual{
      border:1px solid rgba(255,255,255,.13);
      border-radius:34px;
      padding:18px;
      background:
        radial-gradient(circle at 50% 0%,rgba(193,138,72,.15),transparent 28%),
        linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
      min-height:520px;
      box-shadow:var(--shadow);
      display:flex;
      align-items:center;
      justify-content:center;
      overflow:hidden;
      position:relative;
    }
    .vertical-visual:before{
      content:"";
      position:absolute;
      inset:22px;
      border-radius:28px;
      border:1px solid rgba(255,255,255,.08);
      background:
        linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
      background-size:32px 32px;
      opacity:.7;
    }
    .access-panel{
      position:relative;
      width:min(330px,100%);
      border-radius:30px;
      background:#171518;
      border:1px solid rgba(255,255,255,.16);
      box-shadow:0 30px 80px rgba(0,0,0,.48);
      padding:18px;
    }
    .panel-top{
      display:flex;
      justify-content:space-between;
      align-items:center;
      padding-bottom:14px;
      border-bottom:1px solid var(--line);
      color:#d8ceca;
      font-size:13px;
    }
    .control-dots{display:flex;gap:6px}
    .control-dots i{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.22)}
    .panel-card{
      margin-top:16px;
      border-radius:22px;
      background:linear-gradient(135deg,rgba(163,63,82,.18),rgba(255,255,255,.045));
      border:1px solid rgba(255,255,255,.10);
      padding:20px;
    }
    .panel-card h3{margin:0;font-size:22px;line-height:1.2}
    .panel-card p{margin:10px 0 0;color:var(--muted);font-size:14px}
    .check-list{margin:16px 0 0;padding:0;list-style:none;display:grid;gap:10px}
    .check-list li{
      display:flex;justify-content:space-between;gap:12px;
      color:#ddd3cf;font-size:14px;
      padding:10px 0;border-bottom:1px solid rgba(255,255,255,.07);
    }
    .status{
      display:inline-flex;align-items:center;gap:6px;
      color:#cfbfb9;font-size:12px;
    }
    .status:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--green)}
    .status.warn:before{background:var(--amber)}
    .status.attn:before{background:var(--danger)}
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:end;
      gap:24px;
      margin-bottom:30px;
    }
    .section-title{margin:0;font-size:clamp(26px,3.3vw,42px);line-height:1.18;letter-spacing:-.04em}
    .section-note{margin:10px 0 0;color:var(--muted);max-width:680px}
    .progress-wrap{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:22px;
      align-items:stretch;
    }
    .progress-card,.card{
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.022));
      box-shadow:var(--shadow-soft);
      padding:26px;
      transition:.22s ease;
    }
    .card:hover,.progress-card:hover{
      transform:translateY(-3px);
      border-color:rgba(255,255,255,.18);
      background:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.028));
    }
    .big-num{font-size:56px;line-height:1;font-weight:850;letter-spacing:-.05em}
    .progress-bar{
      height:12px;border-radius:999px;background:rgba(255,255,255,.08);
      overflow:hidden;margin:20px 0;
      border:1px solid rgba(255,255,255,.08);
    }
    .progress-bar span{
      display:block;height:100%;width:86%;
      background:linear-gradient(90deg,var(--primary),var(--amber));
      border-radius:inherit;
    }
    .metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .metric{
      border:1px solid var(--line);
      border-radius:18px;
      padding:18px;
      background:rgba(0,0,0,.15);
    }
    .metric strong{display:block;font-size:24px}
    .metric small{display:block;color:var(--weak);margin-top:3px}
    .tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .tier{position:relative;overflow:hidden}
    .tier.featured{border-color:rgba(163,63,82,.42);box-shadow:0 20px 70px rgba(126,47,62,.22)}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      min-height:28px;
      padding:0 10px;
      border-radius:999px;
      color:#eaded9;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.10);
      font-size:12px;
      font-weight:700;
    }
    .badge.hot{background:var(--primary-soft);border-color:rgba(163,63,82,.35)}
    .tier h3,.card h3{margin:16px 0 8px;font-size:21px;line-height:1.3}
    .tier p,.card p{margin:0;color:var(--muted);font-size:15px}
    .tier ul{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:9px;color:#d6cbc7;font-size:14px}
    .tier li{display:flex;gap:9px}
    .tier li:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--amber);margin-top:9px;flex:0 0 auto}
    .screenshot-stage{
      border:1px solid var(--line);
      border-radius:30px;
      background:#181619;
      overflow:hidden;
      box-shadow:var(--shadow);
    }
    .window-bar{
      height:44px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:0 18px;
      border-bottom:1px solid var(--line);
      color:var(--weak);
      font-size:13px;
    }
    .slides{position:relative;min-height:390px}
    .slide{
      display:none;
      padding:28px;
      grid-template-columns:1fr .86fr;
      gap:24px;
      align-items:stretch;
    }
    .slide.active{display:grid}
    .abstract-shot{
      min-height:330px;
      border-radius:24px;
      border:1px solid rgba(255,255,255,.10);
      background:
        linear-gradient(135deg,rgba(163,63,82,.22),rgba(255,255,255,.035)),
        repeating-linear-gradient(90deg,rgba(255,255,255,.045) 0 1px,transparent 1px 52px);
      position:relative;
      overflow:hidden;
    }
    .abstract-shot:before{
      content:"";
      position:absolute;
      inset:34px;
      border-radius:22px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(15,15,17,.58);
    }
    .abstract-lines{position:absolute;inset:62px;display:grid;gap:12px}
    .abstract-lines i{
      height:18px;border-radius:999px;background:rgba(255,255,255,.12);
      display:block;
    }
    .abstract-lines i:nth-child(2){width:76%;background:rgba(163,63,82,.34)}
    .abstract-lines i:nth-child(3){width:58%}
    .abstract-lines i:nth-child(4){width:88%;background:rgba(193,138,72,.18)}
    .slide-copy{
      border-radius:24px;
      background:rgba(255,255,255,.04);
      border:1px solid var(--line);
      padding:26px;
      display:flex;
      flex-direction:column;
      justify-content:center;
    }
    .slide-copy h3{font-size:28px;line-height:1.2;margin:12px 0}
    .slide-copy p{color:var(--muted);margin:0}
    .thumbs{display:flex;gap:10px;padding:0 28px 26px;flex-wrap:wrap}
    .thumb{
      padding:9px 12px;
      border-radius:999px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.04);
      color:var(--muted);
      transition:.2s ease;
    }
    .thumb.active,.thumb:hover{color:#fff;border-color:rgba(163,63,82,.45);background:var(--primary-soft)}
    .spec-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:16px;
    }
    .spec{
      border:1px solid var(--line);
      border-radius:20px;
      padding:20px;
      background:rgba(255,255,255,.04);
    }
    .spec .label{color:var(--weak);font-size:13px}
    .spec strong{display:block;margin:8px 0 4px;font-size:20px}
    .spec p{margin:0;color:var(--muted);font-size:14px}
    .scenario{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:22px;
      align-items:stretch;
    }
    .steps{display:grid;gap:12px}
    .step{
      display:grid;
      grid-template-columns:46px 1fr;
      gap:14px;
      padding:18px;
      border:1px solid var(--line);
      border-radius:20px;
      background:rgba(255,255,255,.035);
    }
    .step-num{
      width:46px;height:46px;border-radius:16px;
      background:var(--primary-soft);
      color:#fff;
      display:grid;place-items:center;
      font-weight:850;
      border:1px solid rgba(163,63,82,.32);
    }
    .step h3{margin:0 0 4px;font-size:18px}
    .step p{margin:0;color:var(--muted);font-size:14px}
    .supporter-wall{
      display:grid;
      grid-template-columns:1.2fr .8fr 1fr;
      gap:16px;
      align-items:start;
    }
    .quote{
      border:1px solid var(--line);
      border-radius:24px;
      padding:22px;
      background:rgba(255,255,255,.04);
      min-height:180px;
    }
    .quote:nth-child(2){margin-top:32px}
    .quote:nth-child(4){grid-column:span 2}
    .quote-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
    .avatar{
      width:38px;height:38px;border-radius:50%;
      background:linear-gradient(135deg,var(--primary),#3a2c31);
      border:1px solid rgba(255,255,255,.18);
    }
    .quote b{display:block}
    .quote small{color:var(--weak)}
    .quote p{margin:0;color:#d6ccc8}
    .rating{
      height:7px;border-radius:999px;background:rgba(255,255,255,.08);
      overflow:hidden;margin-top:16px;
    }
    .rating span{display:block;height:100%;background:linear-gradient(90deg,var(--primary),var(--amber));border-radius:inherit}
    .news-layout{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:24px;
    }
    .news-list{
      border:1px solid var(--line);
      border-radius:24px;
      overflow:hidden;
      background:rgba(255,255,255,.035);
    }
    .news-item{
      display:grid;
      grid-template-columns:120px 1fr;
      gap:18px;
      padding:20px;
      border-bottom:1px solid var(--line);
      transition:.2s ease;
    }
    .news-item:last-child{border-bottom:0}
    .news-item:hover{background:rgba(255,255,255,.045)}
    .news-date{color:var(--amber);font-size:13px;font-weight:750}
    .news-item h3{margin:0 0 6px;font-size:18px}
    .news-item p{margin:0;color:var(--muted);font-size:14px}
    .recommend{
      border:1px solid var(--line);
      border-radius:24px;
      padding:24px;
      background:
        radial-gradient(circle at 80% 0%,rgba(163,63,82,.18),transparent 42%),
        rgba(255,255,255,.04);
    }
    .recommend ul{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:12px}
    .recommend li{
      padding:14px;
      border-radius:16px;
      background:rgba(0,0,0,.17);
      border:1px solid rgba(255,255,255,.08);
      color:#d7cfcb;
    }
    .faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    details{
      border:1px solid var(--line);
      border-radius:20px;
      background:rgba(255,255,255,.04);
      padding:18px 20px;
    }
    summary{
      cursor:pointer;
      font-weight:780;
      color:#fff;
      list-style:none;
      display:flex;
      justify-content:space-between;
      gap:18px;
    }
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";color:var(--amber);font-size:22px;line-height:1}
    details[open] summary:after{content:"−"}
    details p{margin:12px 0 0;color:var(--muted);font-size:15px}
    .final-cta{
      border:1px solid rgba(255,255,255,.13);
      border-radius:34px;
      background:
        radial-gradient(circle at 20% 10%,rgba(163,63,82,.26),transparent 36%),
        linear-gradient(135deg,rgba(255,255,255,.07),rgba(255,255,255,.018));
      box-shadow:var(--shadow);
      padding:42px;
      display:grid;
      grid-template-columns:1fr .82fr;
      gap:24px;
      align-items:center;
    }
    .download-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .download-card{
      border:1px solid var(--line);
      border-radius:18px;
      padding:16px;
      background:rgba(0,0,0,.18);
    }
    .download-card b{display:block}
    .download-card span{display:block;color:var(--weak);font-size:13px;margin-top:3px}
    .notice{
      margin-top:20px;
      border:1px solid rgba(193,138,72,.28);
      background:rgba(193,138,72,.08);
      border-radius:16px;
      padding:14px 16px;
      color:#ddcec7;
      font-size:14px;
    }
    .site-footer{
      border-top:1px solid var(--line);
      padding:34px 0;
      color:var(--weak);
      background:#111012;
    }
    .footer-inner{
      display:flex;
      justify-content:space-between;
      gap:24px;
      align-items:center;
      flex-wrap:wrap;
    }
    .footer-name{color:#fff;font-weight:800}
    .footer-links{display:flex;gap:14px;flex-wrap:wrap}
    .footer-links a:hover{color:#fff}
    @media (max-width:1024px){
      .hero-stage,.progress-wrap,.scenario,.final-cta,.news-layout{grid-template-columns:1fr}
      .hero-copy,.vertical-visual{min-height:auto}
      .metric-grid,.spec-grid,.tier-grid{grid-template-columns:repeat(2,1fr)}
      .supporter-wall{grid-template-columns:repeat(2,1fr)}
      .quote:nth-child(4){grid-column:auto}
      .slide.active{grid-template-columns:1fr}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .nav-links{display:none}
      .menu-btn{display:flex}
      .mobile-panel.open{display:block}
      .section{padding:60px 0}
      .hero{padding:48px 0 54px}
      .hero-copy{padding:28px}
      .hero-points,.metric-grid,.spec-grid,.tier-grid,.faq-grid,.download-grid,.supporter-wall{grid-template-columns:1fr}
      .section-head{display:block}
      .big-num{font-size:44px}
      .slides{min-height:auto}
      .abstract-shot{min-height:260px}
      .news-item{grid-template-columns:1fr;gap:6px}
      .final-cta{padding:28px}
      .brand-text{font-size:16px;max-width:210px}
    }
    @media (max-width:520px){
      .nav-wrap{height:68px}
      .brand-mark{width:38px;height:38px}
      .hero-actions,.cta-actions{flex-direction:column}
      .btn{width:100%}
      .point,.card,.progress-card{padding:20px}
      .slide{padding:18px}
      .thumbs{padding:0 18px 18px}
      .footer-inner{display:block}
      .footer-links{margin-top:14px}
    }

/* roulang page: category1 */
:root {
      --bg: #11100f;
      --bg-soft: #171514;
      --bg-panel: #201c1b;
      --bg-card: #24201f;
      --text: #f4efeb;
      --muted: #b9aeaa;
      --muted-2: #8f8581;
      --line: rgba(255,255,255,.09);
      --line-strong: rgba(255,255,255,.15);
      --brand: #9f3344;
      --brand-2: #c24b60;
      --brand-dark: #672532;
      --amber: #d69b55;
      --silver: #c8c0b8;
      --green: #6fac76;
      --shadow: 0 24px 70px rgba(0,0,0,.42);
      --shadow-soft: 0 14px 34px rgba(0,0,0,.28);
      --radius-xl: 28px;
      --radius-lg: 22px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --container: 1200px;
      --ease: all .24s ease;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background:
        radial-gradient(circle at 18% 0%, rgba(159,51,68,.22), transparent 34%),
        radial-gradient(circle at 84% 12%, rgba(214,155,85,.10), transparent 30%),
        linear-gradient(180deg, #12100f 0%, #171312 42%, #100f0f 100%);
      color: var(--text);
      line-height: 1.75;
      min-height: 100vh;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    img {
      max-width: 100%;
      display: block;
    }

    button,
    input {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
      background: none;
      color: inherit;
    }

    input {
      border: 0;
      outline: none;
    }

    ::selection {
      background: rgba(194,75,96,.42);
      color: #fff;
    }

    .container {
      width: min(var(--container), calc(100% - 40px));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(18,16,15,.92);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(10px);
    }

    .nav-wrap {
      height: 78px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
    }

    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      font-weight: 800;
      letter-spacing: -.03em;
      color: var(--text);
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      border-radius: 13px;
      border: 1px solid rgba(255,255,255,.16);
      background:
        linear-gradient(135deg, rgba(159,51,68,.95), rgba(38,33,32,.82)),
        radial-gradient(circle at 72% 28%, rgba(214,155,85,.48), transparent 30%);
      box-shadow: inset 0 1px 0 rgba(255,255,255,.18), 0 10px 24px rgba(0,0,0,.35);
      position: relative;
      flex: 0 0 auto;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      width: 8px;
      height: 8px;
      right: -3px;
      top: 8px;
      border-radius: 999px;
      background: var(--amber);
      box-shadow: 0 0 14px rgba(214,155,85,.8);
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.1;
    }

    .brand-text strong {
      font-size: 17px;
      white-space: nowrap;
    }

    .brand-text span {
      margin-top: 3px;
      font-size: 12px;
      color: var(--muted-2);
      font-weight: 600;
      letter-spacing: .08em;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 8px;
    }

    .nav-links a {
      position: relative;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 0 15px;
      border-radius: 999px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
      transition: var(--ease);
    }

    .nav-links a:hover {
      color: #fff;
      background: rgba(255,255,255,.055);
    }

    .nav-links a.active {
      color: #fff;
      background: rgba(159,51,68,.18);
      box-shadow: inset 0 0 0 1px rgba(194,75,96,.26);
    }

    .nav-links a.active::after {
      content: "";
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 5px;
      height: 2px;
      border-radius: 999px;
      background: var(--brand-2);
    }

    .nav-links .nav-cta {
      margin-left: 6px;
      color: #fff;
      background: linear-gradient(135deg, var(--brand), var(--brand-2));
      box-shadow: 0 12px 28px rgba(159,51,68,.24);
    }

    .nav-links .nav-cta:hover {
      transform: translateY(-1px);
      background: linear-gradient(135deg, var(--brand-2), #d45a6d);
      box-shadow: 0 16px 34px rgba(159,51,68,.32);
    }

    .menu-toggle {
      display: none;
      width: 46px;
      height: 46px;
      border-radius: 14px;
      border: 1px solid var(--line-strong);
      background: rgba(255,255,255,.045);
      align-items: center;
      justify-content: center;
      transition: var(--ease);
    }

    .menu-toggle:hover,
    .menu-toggle:focus-visible {
      border-color: rgba(194,75,96,.45);
      outline: none;
    }

    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after {
      display: block;
      width: 20px;
      height: 2px;
      border-radius: 999px;
      background: var(--text);
      position: relative;
      transition: var(--ease);
    }

    .menu-toggle span::before,
    .menu-toggle span::after {
      content: "";
      position: absolute;
      left: 0;
    }

    .menu-toggle span::before {
      top: -7px;
    }

    .menu-toggle span::after {
      top: 7px;
    }

    .inner-hero {
      position: relative;
      padding: 78px 0 58px;
      border-bottom: 1px solid var(--line);
      overflow: hidden;
    }

    .inner-hero::before {
      content: "";
      position: absolute;
      inset: 28px auto auto 50%;
      width: 700px;
      height: 380px;
      transform: translateX(-5%);
      background:
        linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px),
        linear-gradient(180deg, rgba(255,255,255,.045) 1px, transparent 1px);
      background-size: 46px 46px;
      mask-image: radial-gradient(circle, #000 0%, transparent 68%);
      opacity: .5;
      pointer-events: none;
    }

    .hero-panel {
      position: relative;
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 42px;
      align-items: center;
    }

    .kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      color: #ecd6db;
      background: rgba(159,51,68,.15);
      border: 1px solid rgba(194,75,96,.24);
      font-size: 13px;
      font-weight: 800;
    }

    .kicker::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: var(--amber);
      box-shadow: 0 0 14px rgba(214,155,85,.75);
    }

    h1 {
      margin-top: 18px;
      font-size: clamp(30px, 4vw, 46px);
      line-height: 1.14;
      letter-spacing: -.045em;
      font-weight: 850;
    }

    .hero-summary {
      margin-top: 18px;
      max-width: 720px;
      color: var(--muted);
      font-size: 16px;
    }

    .search-card {
      margin-top: 26px;
      padding: 10px;
      border-radius: 20px;
      border: 1px solid var(--line-strong);
      background: rgba(255,255,255,.055);
      display: flex;
      align-items: center;
      gap: 10px;
      box-shadow: var(--shadow-soft);
    }

    .search-card input {
      flex: 1;
      min-width: 0;
      height: 48px;
      padding: 0 14px;
      color: var(--text);
      background: transparent;
    }

    .search-card input::placeholder {
      color: var(--muted-2);
    }

    .search-card:focus-within {
      border-color: rgba(194,75,96,.5);
      box-shadow: 0 0 0 4px rgba(159,51,68,.12), var(--shadow-soft);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 46px;
      padding: 0 18px;
      border-radius: 14px;
      font-weight: 800;
      font-size: 14px;
      transition: var(--ease);
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--brand), var(--brand-2));
      box-shadow: 0 14px 30px rgba(159,51,68,.28);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 18px 38px rgba(159,51,68,.36);
    }

    .btn-ghost {
      color: var(--text);
      background: rgba(255,255,255,.055);
      border-color: var(--line-strong);
    }

    .btn-ghost:hover {
      border-color: rgba(194,75,96,.45);
      background: rgba(159,51,68,.12);
      transform: translateY(-2px);
    }

    .quick-tags {
      margin-top: 18px;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      min-height: 34px;
      padding: 0 12px;
      border-radius: 999px;
      border: 1px solid var(--line);
      background: rgba(255,255,255,.04);
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
      transition: var(--ease);
    }

    .tag:hover,
    .tag.active {
      color: #fff;
      border-color: rgba(194,75,96,.45);
      background: rgba(159,51,68,.16);
    }

    .hud-card {
      position: relative;
      border-radius: var(--radius-xl);
      border: 1px solid var(--line-strong);
      background:
        linear-gradient(145deg, rgba(255,255,255,.075), rgba(255,255,255,.025)),
        linear-gradient(180deg, rgba(36,32,31,.96), rgba(20,18,17,.96));
      box-shadow: var(--shadow);
      padding: 22px;
      overflow: hidden;
    }

    .hud-card::before {
      content: "";
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 78% 0%, rgba(194,75,96,.24), transparent 34%);
      pointer-events: none;
    }

    .hud-top {
      position: relative;
      display: flex;
      justify-content: space-between;
      gap: 16px;
      align-items: center;
      padding-bottom: 16px;
      border-bottom: 1px solid var(--line);
    }

    .window-dots {
      display: flex;
      gap: 7px;
    }

    .window-dots i {
      width: 9px;
      height: 9px;
      border-radius: 999px;
      background: var(--line-strong);
    }

    .window-dots i:nth-child(1) { background: var(--brand-2); }
    .window-dots i:nth-child(2) { background: var(--amber); }
    .window-dots i:nth-child(3) { background: var(--green); }

    .hud-status {
      color: var(--muted);
      font-size: 13px;
      font-weight: 800;
    }

    .status-grid {
      position: relative;
      margin-top: 18px;
      display: grid;
      gap: 12px;
    }

    .status-row {
      display: grid;
      grid-template-columns: 110px 1fr auto;
      gap: 12px;
      align-items: center;
      padding: 14px;
      border-radius: 16px;
      background: rgba(0,0,0,.18);
      border: 1px solid rgba(255,255,255,.07);
    }

    .status-row strong {
      font-size: 14px;
    }

    .status-row span {
      color: var(--muted);
      font-size: 13px;
    }

    .pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 5px 9px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 850;
      color: #fff;
      border: 1px solid rgba(255,255,255,.1);
      background: rgba(255,255,255,.055);
    }

    .dot {
      width: 7px;
      height: 7px;
      border-radius: 999px;
      background: var(--green);
    }

    .dot.amber { background: var(--amber); }
    .dot.brand { background: var(--brand-2); }

    main {
      position: relative;
    }

    .section {
      padding: 78px 0;
      border-bottom: 1px solid rgba(255,255,255,.055);
    }

    .section-head {
      display: grid;
      grid-template-columns: .8fr 1.2fr;
      gap: 32px;
      align-items: end;
      margin-bottom: 32px;
    }

    .eyebrow {
      color: var(--amber);
      font-weight: 850;
      font-size: 13px;
      letter-spacing: .08em;
      margin-bottom: 8px;
    }

    h2 {
      font-size: clamp(24px, 3vw, 34px);
      line-height: 1.2;
      letter-spacing: -.035em;
      font-weight: 850;
    }

    .section-desc {
      color: var(--muted);
      font-size: 15px;
      max-width: 720px;
    }

    .filter-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      padding: 12px;
      border-radius: 22px;
      border: 1px solid var(--line);
      background: rgba(255,255,255,.035);
      margin-bottom: 24px;
    }

    .filter-btn {
      min-height: 38px;
      padding: 0 14px;
      border-radius: 999px;
      color: var(--muted);
      font-weight: 800;
      font-size: 13px;
      border: 1px solid transparent;
      transition: var(--ease);
    }

    .filter-btn:hover,
    .filter-btn.active {
      color: #fff;
      background: rgba(159,51,68,.16);
      border-color: rgba(194,75,96,.34);
    }

    .access-layout {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 22px;
      align-items: stretch;
    }

    .access-card,
    .spec-card,
    .quote-card,
    .step-card,
    .faq-item,
    .download-panel {
      border: 1px solid var(--line);
      background:
        linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.025)),
        var(--bg-card);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-soft);
      transition: var(--ease);
    }

    .access-card:hover,
    .spec-card:hover,
    .quote-card:hover,
    .step-card:hover {
      transform: translateY(-3px);
      border-color: rgba(194,75,96,.28);
    }

    .access-card {
      padding: 24px;
    }

    .card-top {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      align-items: flex-start;
      margin-bottom: 18px;
    }

    .card-title {
      font-size: 20px;
      font-weight: 850;
      letter-spacing: -.02em;
    }

    .card-text {
      color: var(--muted);
      font-size: 15px;
      margin-top: 8px;
    }

    .metric-list {
      display: grid;
      gap: 12px;
      margin-top: 20px;
    }

    .metric {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      align-items: center;
      padding: 13px 0;
      border-top: 1px solid rgba(255,255,255,.07);
    }

    .metric span {
      color: var(--muted);
      font-size: 14px;
    }

    .metric strong {
      color: var(--text);
      font-size: 14px;
      text-align: right;
    }

    .mini-stack {
      display: grid;
      gap: 14px;
    }

    .mini-card {
      padding: 18px;
      border-radius: 20px;
      border: 1px solid var(--line);
      background: rgba(255,255,255,.035);
    }

    .mini-card strong {
      display: block;
      margin-bottom: 6px;
      font-size: 16px;
    }

    .mini-card p {
      color: var(--muted);
      font-size: 14px;
    }

    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      counter-reset: step;
    }

    .step-card {
      position: relative;
      padding: 22px;
      min-height: 210px;
      overflow: hidden;
    }

    .step-card::before {
      counter-increment: step;
      content: "0" counter(step);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 42px;
      height: 42px;
      border-radius: 14px;
      background: rgba(159,51,68,.18);
      border: 1px solid rgba(194,75,96,.28);
      color: #ffdbe1;
      font-weight: 900;
      margin-bottom: 22px;
    }

    .step-card h3 {
      font-size: 17px;
      margin-bottom: 8px;
    }

    .step-card p {
      color: var(--muted);
      font-size: 14px;
    }

    .screenshot-shell {
      border-radius: var(--radius-xl);
      border: 1px solid var(--line-strong);
      background: #191615;
      overflow: hidden;
      box-shadow: var(--shadow);
    }

    .screenshot-top {
      height: 48px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 18px;
      border-bottom: 1px solid var(--line);
      color: var(--muted);
      font-size: 13px;
      font-weight: 800;
    }

    .screen-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      min-height: 360px;
    }

    .screen-main {
      padding: 28px;
      background:
        radial-gradient(circle at 20% 20%, rgba(159,51,68,.22), transparent 28%),
        linear-gradient(135deg, rgba(255,255,255,.045), rgba(255,255,255,.015));
    }

    .screen-title {
      font-size: 24px;
      font-weight: 900;
      letter-spacing: -.03em;
      margin: 18px 0 10px;
    }

    .screen-main p {
      color: var(--muted);
      max-width: 560px;
    }

    .progress-lines {
      margin-top: 28px;
      display: grid;
      gap: 12px;
    }

    .line-bar {
      height: 12px;
      border-radius: 999px;
      background: rgba(255,255,255,.08);
      overflow: hidden;
    }

    .line-bar i {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--brand), var(--amber));
    }

    .screen-side {
      padding: 26px;
      border-left: 1px solid var(--line);
      display: grid;
      gap: 12px;
      align-content: center;
    }

    .screen-side .mini-card {
      background: rgba(0,0,0,.17);
    }

    .spec-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }

    .spec-card {
      padding: 20px;
    }

    .spec-label {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--muted);
      font-size: 13px;
      font-weight: 850;
      margin-bottom: 10px;
    }

    .spec-value {
      font-size: 19px;
      font-weight: 900;
      margin-bottom: 8px;
    }

    .spec-card p {
      color: var(--muted);
      font-size: 14px;
    }

    .quote-wall {
      columns: 3 280px;
      column-gap: 16px;
    }

    .quote-card {
      display: inline-block;
      width: 100%;
      padding: 20px;
      margin: 0 0 16px;
      break-inside: avoid;
    }

    .quote-head {
      display: flex;
      gap: 12px;
      align-items: center;
      margin-bottom: 14px;
    }

    .avatar {
      width: 42px;
      height: 42px;
      border-radius: 16px;
      background:
        linear-gradient(135deg, rgba(194,75,96,.85), rgba(214,155,85,.55));
      border: 1px solid rgba(255,255,255,.18);
      flex: 0 0 auto;
    }

    .quote-head strong {
      display: block;
      font-size: 14px;
    }

    .quote-head span {
      display: block;
      color: var(--muted-2);
      font-size: 12px;
    }

    .quote-card p {
      color: var(--muted);
      font-size: 14px;
    }

    .rating {
      margin-top: 14px;
      height: 7px;
      border-radius: 999px;
      background: rgba(255,255,255,.08);
      overflow: hidden;
    }

    .rating i {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--brand-2), var(--amber));
    }

    .faq-list {
      display: grid;
      gap: 14px;
      max-width: 920px;
      margin: 0 auto;
    }

    .faq-item {
      overflow: hidden;
    }

    .faq-q {
      width: 100%;
      min-height: 64px;
      padding: 18px 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      text-align: left;
      font-weight: 850;
    }

    .faq-q:hover {
      background: rgba(255,255,255,.035);
    }

    .faq-q i {
      width: 22px;
      height: 22px;
      border-radius: 999px;
      border: 1px solid var(--line-strong);
      position: relative;
      flex: 0 0 auto;
    }

    .faq-q i::before,
    .faq-q i::after {
      content: "";
      position: absolute;
      inset: 50% auto auto 50%;
      width: 10px;
      height: 2px;
      background: var(--muted);
      transform: translate(-50%, -50%);
      border-radius: 999px;
    }

    .faq-q i::after {
      transform: translate(-50%, -50%) rotate(90deg);
    }

    .faq-item.open .faq-q i::after {
      opacity: 0;
    }

    .faq-a {
      display: none;
      padding: 0 22px 20px;
      color: var(--muted);
      font-size: 15px;
    }

    .faq-item.open .faq-a {
      display: block;
    }

    .download-panel {
      position: relative;
      padding: 34px;
      overflow: hidden;
      background:
        radial-gradient(circle at 82% 18%, rgba(194,75,96,.25), transparent 34%),
        linear-gradient(135deg, rgba(36,32,31,.98), rgba(16,15,15,.98));
    }

    .download-panel::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px),
        linear-gradient(180deg, rgba(255,255,255,.035) 1px, transparent 1px);
      background-size: 54px 54px;
      mask-image: linear-gradient(90deg, transparent 0%, #000 44%, transparent 100%);
      pointer-events: none;
      opacity: .55;
    }

    .download-content {
      position: relative;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 26px;
      align-items: center;
    }

    .download-content h2 {
      margin-bottom: 10px;
    }

    .download-content p {
      color: var(--muted);
      max-width: 720px;
    }

    .download-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: flex-end;
    }

    .notice {
      position: relative;
      margin-top: 22px;
      padding: 14px 16px;
      border-radius: 16px;
      border: 1px solid rgba(214,155,85,.25);
      background: rgba(214,155,85,.08);
      color: #ecd3b1;
      font-size: 13px;
      font-weight: 700;
    }

    .site-footer {
      padding: 30px 0;
      background: #0f0e0e;
      border-top: 1px solid var(--line);
      color: var(--muted);
    }

    .footer-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      font-size: 13px;
    }

    .footer-name {
      color: var(--text);
      font-weight: 900;
      font-size: 16px;
      margin-bottom: 4px;
      letter-spacing: -.02em;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: flex-end;
    }

    .footer-links a {
      padding: 8px 10px;
      border-radius: 999px;
      transition: var(--ease);
      color: var(--muted);
      font-weight: 700;
    }

    .footer-links a:hover {
      color: #fff;
      background: rgba(255,255,255,.055);
    }

    a:focus-visible,
    button:focus-visible {
      outline: 3px solid rgba(194,75,96,.38);
      outline-offset: 3px;
    }

    @media (max-width: 1024px) {
      .hero-panel,
      .access-layout,
      .screen-grid,
      .download-content {
        grid-template-columns: 1fr;
      }

      .section-head {
        grid-template-columns: 1fr;
        gap: 12px;
      }

      .steps-grid,
      .spec-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .screen-side {
        border-left: 0;
        border-top: 1px solid var(--line);
      }

      .download-actions {
        justify-content: flex-start;
      }
    }

    @media (max-width: 768px) {
      .container {
        width: min(100% - 28px, var(--container));
      }

      .nav-wrap {
        height: 68px;
      }

      .brand-text span {
        display: none;
      }

      .brand-text strong {
        font-size: 15px;
      }

      .menu-toggle {
        display: inline-flex;
      }

      .nav-links {
        position: absolute;
        left: 14px;
        right: 14px;
        top: 76px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 14px;
        border-radius: 22px;
        border: 1px solid var(--line-strong);
        background: rgba(20,18,17,.98);
        box-shadow: var(--shadow);
      }

      .site-header.open .nav-links {
        display: flex;
      }

      .nav-links a {
        min-height: 48px;
        justify-content: flex-start;
        padding: 0 16px;
      }

      .nav-links .nav-cta {
        margin-left: 0;
        justify-content: center;
      }

      .inner-hero {
        padding: 48px 0 42px;
      }

      .search-card {
        flex-direction: column;
        align-items: stretch;
      }

      .search-card input {
        width: 100%;
      }

      .section {
        padding: 54px 0;
      }

      .status-row {
        grid-template-columns: 1fr;
      }

      .card-top {
        flex-direction: column;
      }

      .footer-inner {
        flex-direction: column;
        align-items: flex-start;
      }

      .footer-links {
        justify-content: flex-start;
      }
    }

    @media (max-width: 520px) {
      .steps-grid,
      .spec-grid {
        grid-template-columns: 1fr;
      }

      .hud-card,
      .download-panel {
        padding: 20px;
        border-radius: 22px;
      }

      .access-card {
        padding: 20px;
      }

      .btn {
        width: 100%;
      }

      .quick-tags,
      .filter-bar,
      .download-actions {
        flex-direction: column;
      }

      .tag,
      .filter-btn {
        width: 100%;
        justify-content: center;
      }
    }